[R] Connecting to "heterogenous" cluster using makeSOCKcluster of SNOW-package

[Melwin]

When trying to create (a very simple) cluster using makeSOCKcluster or  
makeCluster I get the following error message:
> library(snow)
> cl <- makeSOCKcluster("localhost")
Fatal error: kann Datei  
'~/R/i686-suse-linux-gnu-library/2.8/snow/RSOCKnode.R' nicht öffnen: Datei  
oder Verzeichnis nicht gefunden
(translation: could not open file [...]: File or directory not found)

The R-prompt does not re-appear until CTRL-C has been pressed.

RSCOKnode.R is definitely there with all access right:
ls -l ~/R/i686-suse-linux-gnu-library/2.8/snow/RSOCKnode.R
-rwxrwxrwx 1 GEOECOLOGY\francke GEOECOLOGY\mitarbeiter 911  7. Apr 14:51  
/home/GEOECOLOGY/francke/R/i686-suse-linux-gnu-library/2.8/snow/RSOCKnode.R

In contrast, creating explicitly "homogenous" cluster works:
> setDefaultClusterOptions(homogeneous = TRUE)
> cl <- makeSOCKcluster("localhost")

Since I intend to use really "inhomgenous" clusters, I followed the  
respective instructions given on  
http://www.stat.uiowa.edu/~luke/R/cluster/cluster.html#Section:InhomogeneousSystems.  
I also tried the modifications to RSOCKnode.sh proposed in  
http://heather.cs.ucdavis.edu/~matloff/R/RProg.pdf - no different  
behaviour.

I'd appreciate any comments that help me in getting an incomogenous  
cluster running without the need of MPI or PVM.

Thanks in advance.

Till Francke
Dept. for Geoecology
University of Potsdam

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